Search a number
-
+
26985385 = 57771011
BaseRepresentation
bin110011011110…
…0001110101001
31212202222222201
41212330032221
523402013020
62402220201
7445241410
oct146741651
955688881
1026985385
1114261579
129054661
13578aaab
143826477
152580a0a
hex19bc3a9

26985385 has 8 divisors (see below), whose sum is σ = 37008576. Its totient is φ = 18504240.

The previous prime is 26985383. The next prime is 26985397. The reversal of 26985385 is 58358962.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26985385 - 21 = 26985383 is a prime.

It is a super-2 number, since 2×269853852 = 1456422007196450, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (26985383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385471 + ... + 385540.

It is an arithmetic number, because the mean of its divisors is an integer number (4626072).

Almost surely, 226985385 is an apocalyptic number.

It is an amenable number.

26985385 is a deficient number, since it is larger than the sum of its proper divisors (10023191).

26985385 is an equidigital number, since it uses as much as digits as its factorization.

26985385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771023.

The product of its digits is 518400, while the sum is 46.

The square root of 26985385 is about 5194.7459033142. The cubic root of 26985385 is about 299.9458606007.

The spelling of 26985385 in words is "twenty-six million, nine hundred eighty-five thousand, three hundred eighty-five".

Divisors: 1 5 7 35 771011 3855055 5397077 26985385